/*
	Copyright (c) 2010, Mathias Myrland, Myrland Systemutvikling (mathias@myrsys.no)
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:
	
	    * Redistributions of source code must retain the above copyright
	      notice, this list of conditions and the following disclaimer.
	      
	    * Redistributions in binary form must reproduce the above copyright
	      notice, this list of conditions and the following disclaimer in the
	      documentation and/or other materials provided with the distribution.
	      
	    * Neither the name of Myrland Systemutvikling nor the
	      names of its contributors may be used to endorse or promote products
	      derived from this software without specific prior written permission.

	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
	DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CGF_OBJECT_HPP
#define CGF_OBJECT_HPP

namespace CGF
{
	#include <boost/weak_ptr.hpp>
	#include <boost/shared_ptr.hpp>
	
	/**
	*	A templated object base class, which provides basic functionality like a boost::weak_ptr<t_cname> _this-pointer
	*	
	*	@tparam t_cname	The type of the object	*/
	template<typename t_cname>
	class Object
	{
		boost::weak_ptr<t_cname> m_this;
		
		public:
			typedef boost::shared_ptr<t_cname> ptr;
			typedef boost::weak_ptr<t_cname> ptr_w;
			
			/**
			*	Returns a boost:weak_ptr to this instance of the class if specified. Throws an error if the m_this ptr has not been set
			*
			*	@throws CGF::Error upon failure	*/
			boost::weak_ptr<t_cname>& _this() { return m_this; }
			
			void setThis ( boost::weak_ptr<t_cname> th )
			{
				m_this = th;
			}
			Object() { }
			virtual ~Object() {}
	};
}//	namespace CGF
#endif
